原题

Password (20 分)

题解

白给题

代码

#include <iostream>
#include <string>
#include <map>
#include <vector>
using namespace std;

int main(void) {
    int n;
    map<string,string> m;
    vector<string> v;
    cin >> n;
    for (int i = 0;i < n;i++) {
        string userName;
        string password;
        cin >> userName >> password;
        bool isModified = false;
        for (int j = 0;j < password.length();j++) {
            if (password[j] == '1') {
                password[j] = '@';
                isModified = true;
            } else if (password[j] == '0') {
                password[j] = '%';
                isModified = true;
            } else if (password[j] == 'l') {
                password[j] = 'L';
                isModified = true;
            } else if (password[j] == 'O') {
                password[j] = 'o';
                isModified = true;
            }
        }
        if (isModified) {
            v.push_back(userName);
            m[userName] = password;
        }
    }

    int size = v.size();
    if (size) {
        cout << size << endl;
        for (auto it : v) {
            cout << it << " " << m[it] << endl;
        }
    } else {
        if (n > 1) {
            cout << "There are " << n << " accounts and no account is modified" << endl;
        } else {
            cout << "There is " << n << " account and no account is modified" << endl;
        }
    }
    return 0;
}